Singularity of the density of states for one-dimensional chains with random couplings期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

按检索

Singularity of the density of states for one-dimensional chains with random couplings

Authors:	Massimo Campanino J Fernando Perez

Institution:	(1) Instituto di Mathematica, Departimento di Matematica, Università di Bologna, piorza Porta S. Donato, 5, I-40127 Bologna, Italy;(2) Departimento de Fisica Matematica, IFUSP, P.O. Box 20516, São Paulo, Brazil

Abstract:	We prove that the density of states for the tight-binding model with off-diagonal disorder under general conditions diverges forR0 at least as $\sim \frac{1}{{\left\| E \right\|(\ln \left\| E \right\|)^4 }}$ . This result is established through the study of the recurrence properties of an associated Markov chain.Partial financial support by GNAFA (CNR)Partial financial support by CNPq, grant n.303795-77FA

Keywords:
本文献已被 SpringerLink 等数据库收录！